1
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Yan Y, Huang M, Wang Y, He D, He J. M-Ni-Co MOF (M=Zn, Fe, Mn) for high-performance supercapacitors by adjusting its morphology. Heliyon 2024; 10:e25586. [PMID: 38439860 PMCID: PMC10909646 DOI: 10.1016/j.heliyon.2024.e25586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/28/2024] [Accepted: 01/30/2024] [Indexed: 03/06/2024] Open
Abstract
Metal-organic frameworks (MOF) have been wildly synthesised and studied as electrode materials for supercapacitors, and bimetallic MOF of Ni and Co has been broadly studied to enhance both specific capacitance and stability of supercapacitors. Herein, a best performance (about 320 F/g) of Ni-Co bimetallic MOF was found in a uniform preparation condition by adjusting the ratio of Ni to Co. Then tiny third metal ion was introduced, and we found that the morphology of material has a significant change on the original basis. Furthermore, certain ions (Zn, Fe, Mn) introduced make a huge improvement in capacitance based on Ni-Co MOF of 320 F/g. The result shows that Zn-Ni-Co MOF, Fe-Ni-Co MOF and Mn-Ni-Co MOF perform specific capacitance of 1135 F/g, 870 F/g and 760F/g at 1 A/g, respectively. Meanwhile, the asymmetric supercapacitor (ASC) was constructed by Zn-Ni-Co MOF as positive electrode and active carbon (AC) as negative electrode. The Zn-Ni-Co MOF//AC ASC possesses a energy density of 58 Wh/kg at a power density of 775 W/kg. This research provides a new methods to regulate the morphology of MOF and a novel viewpoint for assembling high-performance, low-price, and eco-friendly green energy storage devices.
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Affiliation(s)
- Yige Yan
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Mohan Huang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Yongsheng Wang
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Dawei He
- Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing, 100044, China
| | - Jiaqi He
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing, 100029, China
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2
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Cao Z, Momen R, Tao S, Xiong D, Song Z, Xiao X, Deng W, Hou H, Yasar S, Altin S, Bulut F, Zou G, Ji X. Metal-Organic Framework Materials for Electrochemical Supercapacitors. NANO-MICRO LETTERS 2022; 14:181. [PMID: 36050520 PMCID: PMC9437182 DOI: 10.1007/s40820-022-00910-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Exploring new materials with high stability and capacity is full of challenges in sustainable energy conversion and storage systems. Metal-organic frameworks (MOFs), as a new type of porous material, show the advantages of large specific surface area, high porosity, low density, and adjustable pore size, exhibiting a broad application prospect in the field of electrocatalytic reactions, batteries, particularly in the field of supercapacitors. This comprehensive review outlines the recent progress in synthetic methods and electrochemical performances of MOF materials, as well as their applications in supercapacitors. Additionally, the superiorities of MOFs-related materials are highlighted, while major challenges or opportunities for future research on them for electrochemical supercapacitors have been discussed and displayed, along with extensive experimental experiences.
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Affiliation(s)
- Ziwei Cao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Roya Momen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Shusheng Tao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Dengyi Xiong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Zirui Song
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Xuhuan Xiao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Wentao Deng
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Hongshuai Hou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
| | - Sedat Yasar
- Department of Chemistry, Faculty of Science, Inonu University, 44280, Battalgazi, Malatya, Turkey
| | - Sedar Altin
- Physics Department, Inonu University, 44280, Malatya, Turkey
| | - Faith Bulut
- Physics Department, Inonu University, 44280, Malatya, Turkey
| | - Guoqiang Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China.
| | - Xiaobo Ji
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, People's Republic of China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
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3
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Zhang H, Mei H, Qin D, Li Z, Hou Z, Lu X, Xu B, Sun D. Conversion of Amorphous MOF Microspheres into a Nickel Phosphate Battery-Type Electrode Using the "Anticollapse" Two-Step Strategy. Inorg Chem 2021; 60:17094-17102. [PMID: 34705445 DOI: 10.1021/acs.inorgchem.1c02335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal-organic frameworks (MOFs) have attracted great attention as templates for preparation of functional porous materials owing to their adjustable structures, rich porosity, and controllable components. However, collapsed templates during the conversion process hinder their application and synthesis of derivatives. In this study, we demonstrate a novel two-step etching strategy during which amorphous MOF microspheres are initially transformed into nickel hydroxide and then subsequently transformed into microspherical nickel phosphates. Through this strategy, the prepared nickel phosphates maintain the microspherical morphology of MOFs but with no MOF residuals, exhibiting ultrahigh specific surface area, uniform pore size, and good structural robustness. Examined as a supercapacitor electrode, they show an outstanding specific capacity of 820 C g-1 at 0.5 A g-1 and remarkable cycling stability of 88% capacity retention after 10 000 cycles. Moreover, an asymmetric supercapacitor constructed utilizing reduced graphene cross-linked with p-phenylenediamine oxide (PPD-rGO) as the cathode displays a preeminent energy density of 64.56 Wh kg-1 at a power density of 507 W kg-1. This strategy has important significance in guiding the preparation of high-performance MOF-derived electrodes.
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Affiliation(s)
- Haobing Zhang
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Hao Mei
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Dengke Qin
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Ziyi Li
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Zheyuan Hou
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Xiaoqing Lu
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
| | - Ben Xu
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China.,Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, People's Republic of China
| | - Daofeng Sun
- College of Science, School of Material Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China
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4
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Vivek E, Arulraj A, Khalid M, Vetha Potheher I. Facile synthesis of 2D Ni(OH)2 anchored g-C3N4 as electrode material for high-performance supercapacitor. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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5
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Shang X, Mei H, Li Z, Dong C, Wang Z, Xu B. Improved ionic diffusion and interfacial charge/mass transfer of ZIF-67-derived Ni–Co-LDH electrodes with bare ZIF-residual for enhanced supercapacitor performance. NEW J CHEM 2021. [DOI: 10.1039/d1nj02201f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The crystallization of Ni–Co-LDH and the morphology of the hierarchical structure can be simply optimized to achieve improved ionic diffusion and reduce reaction resistance of charge/mass transfer between the electrode/electrolyte interfaces.
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Affiliation(s)
- Xiaosen Shang
- College of Petroleum Engineering
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Hao Mei
- College of Science
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Ziyi Li
- School of Material Science and Engineering
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Changyin Dong
- College of Petroleum Engineering
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Zengbao Wang
- College of Petroleum Engineering
- China University of Petroleum (East China)
- Qingdao
- P. R. China
| | - Ben Xu
- School of Material Science and Engineering
- China University of Petroleum (East China)
- Qingdao
- P. R. China
- Key Laboratory of Eco-chemical Engineering
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6
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7
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Meng A, Yuan X, Shen T, Zhao J, Song G, Lin Y, Li Z. Amorphous nickel sulfide nanoparticles anchored on N-doped graphene nanotubes with superior properties for high-performance supercapacitors and efficient oxygen evolution reaction. NANOSCALE 2020; 12:4655-4666. [PMID: 32048677 DOI: 10.1039/c9nr09654j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The rational design of a novel material system with superior properties of energy storage and conversion is a significant work. In this paper, amorphous nickel sulfide nanoparticles anchored on N-doped graphene nanotubes (N-GNTs@NSNs) were firstly synthesized by a facile electrochemical-deposition method, which can serve as free-standing robust supercapacitor electrode materials and electrocatalysts. Stemming from the disordered structure of amorphous active materials and the synergy of novel N-GNT framework materials, the as-prepared N-GNT@NSN electrode unveils prominent capacitive behaviors, including a large specific capacity of 240 mA h g-1 (2160 F g-1), decent rate capability, and outstanding cycling stability (95.8% of capacity retention after 12 000 cycles). An asymmetric supercapacitor with N-GNTs@NSNs as the positive electrode and active carbon (AC) as the negative electrode is further assembled, which shows a maximum energy density of 49.5 W h kg-1 at a power density of 800 W kg-1 and robust stability (96.6% capacity retention after 12 000 cycles). Moreover, the electrode also possesses high activities in the oxygen evolution reaction (OER), namely it can attain a current density of 10 mA cm-2 at an overpotential of 284 mV in 1 M KOH. This finding is not only important for significantly enhancing the electrochemical performances of supercapacitor electrode materials and electrocatalysts, but also lays the solid foundation for their further industrial applications in energy storage and conversion systems.
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Affiliation(s)
- Alan Meng
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China.
| | - Xiangcheng Yuan
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China.
| | - Tong Shen
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China.
| | - Jian Zhao
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial, College of Sino-German Science and Technology, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, PR China
| | - Guanying Song
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial, College of Sino-German Science and Technology, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, PR China
| | - Yusheng Lin
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Zhenjiang Li
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, PR China. and Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial, College of Sino-German Science and Technology, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, PR China and College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
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8
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Chen X, Yang L, Huang Y, Ge S, Zhang H, Cui Y, Huang A, Xiao Z. Fabrication of a Hierarchical Ni(OH) 2 @Ni 3 S 2 /Ni Foam Electrode from a Prussian Blue Analogue-Based Composite with Enhanced Electrochemical Capacitive and Electrocatalytic Properties. Chemistry 2020; 26:1111-1116. [PMID: 31709690 DOI: 10.1002/chem.201904324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Indexed: 11/09/2022]
Abstract
Developing high-efficiency, cost-effective, and durable electrodes is significant for electrochemical capacitors and electrocatalysis. Herein, a 3D bifunctional electrode consisting of nickel hydroxide nanosheets@nickel sulfide nanocubes arrays on Ni foam (Ni(OH)2 @Ni3 S2 /NF) obtained from a Prussian blue analogue-based precursor is reported. The 3D higher-order porous structure and synergistic effect of different compositions endow the electrode with large specific surface area, facile ion/electron transport path, and improved conductivity. As a result, the Ni(OH)2 @Ni3 S2 /NF electrode exhibits a high specific capacity of 211 mA h g-1 at a current density of 1 A g-1 and 73 % capacity retention after 5000 cycles at 5 A g-1 . Moreover, the Ni(OH)2 @Ni3 S2 /NF electrode has superior electrocatalytic activity for the hydrogen evolution reaction with low overpotentials of 140 and 210 mV at current densities of 10 and 100 mA cm-2 , respectively. The synthetic strategy for the unique higher-order porous structure can be extended to fabricate other composite materials for energy storage and conversion.
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Affiliation(s)
- Xiaojuan Chen
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China.,Beijing Academy of Quantum Information Sciences, Beijing, 100193, P.R. China
| | - Longkun Yang
- School of Physics, Capital Normal University, Beijing, 100048, P.R. China
| | - Yunxia Huang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China
| | - Shuaipeng Ge
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China
| | - Hao Zhang
- Institute of Frontier Science and Technology Innovation, Beihang University, Beijing, 100191, P.R. China
| | - Yimin Cui
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China
| | - Anping Huang
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China
| | - Zhisong Xiao
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics, School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, P.R. China.,Beijing Academy of Quantum Information Sciences, Beijing, 100193, P.R. China
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9
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Deng K, Wang F, Tian W, Hu Z, Zhang H, Ma K, Wang C, Yue H, Zhang YX, Ji J. Hierarchical Co-doped SnS2@Ni(OH)2 double-shell crystalline structure on carbon cloth with gradient pore distribution for superior capacitance. CrystEngComm 2020. [DOI: 10.1039/d0ce00504e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hierarchical Co-doped SnS2@Ni(OH)2 double-shell nanosheet arrays are coated on carbon cloth, the vertically aligned arrays with gradient pore distribution can facilitate the charge/ion transfer rate, thus improve the energy storage performance.
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Affiliation(s)
- Kuan Deng
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Feifei Wang
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Wen Tian
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Zhufeng Hu
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Hualian Zhang
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Kui Ma
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Caihong Wang
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Hairong Yue
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Yu Xin Zhang
- College of Material Science and Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Junyi Ji
- School of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
- State Key Laboratory of Polymer Materials Engineering
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10
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Xiao Z, Mei Y, Yuan S, Mei H, Xu B, Bao Y, Fan L, Kang W, Dai F, Wang R, Wang L, Hu S, Sun D, Zhou HC. Controlled Hydrolysis of Metal-Organic Frameworks: Hierarchical Ni/Co-Layered Double Hydroxide Microspheres for High-Performance Supercapacitors. ACS NANO 2019; 13:7024-7030. [PMID: 31120727 DOI: 10.1021/acsnano.9b02106] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pseudomorphic conversion of metal-organic frameworks (MOFs) enables the fabrication of nanomaterials with well-defined porosities and morphologies for enhanced performances. However, the commonly reported calcination strategy usually requires high temperature to pyrolyze MOF particles and often results in uncontrolled growth of nanomaterials. Herein, we report the controlled alkaline hydrolysis of MOFs to produce layered double hydroxide (LDH) while maintaining the porosity and morphology of MOF particles. The preformed trinuclear M3(μ3-OH) (M = Ni2+ and Co2+) clusters in MOFs were demonstrated to be critical for the pseudomorphic transformation process. An isotopic tracing experiment revealed that the 18O-labeled M3(μ3-18OH) participated in the structural assembly of LDH, which avoided the leaching of metal cations and the subsequent uncontrolled growth of hydroxides. The resulting LDHs maintain the spherical morphology of MOF templates and possess a hierarchical porous structure with high surface area (BET surface area up to 201 m2·g-1), which is suitable for supercapacitor applications. As supercapacitor electrodes, the optimized LDH with the Ni:Co molar ratio of 7:3 shows a high specific capacitance (1652 F·g-1 at 1 A·g-1) and decent cycling performance, retaining almost 100% after 2000 cycles. Furthermore, the hydrolysis method allows the recycling of organic ligands and large-scale synthesis of LDH materials.
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Affiliation(s)
- Zhenyu Xiao
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , People's Republic of China
| | - Yingjie Mei
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Shuai Yuan
- Department of Chemistry, Materials Science and Engineering , Texas A&M University , College Station , Texas 77842-3012 , United States
| | - Hao Mei
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Ben Xu
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Yuxiang Bao
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , People's Republic of China
| | - Lili Fan
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Wenpei Kang
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Fangna Dai
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Rongmign Wang
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Lei Wang
- Key Laboratory of Eco-chemical Engineering, Ministry of Education, Laboratory of Inorganic Synthesis and Applied Chemistry, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , People's Republic of China
| | - Songqing Hu
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Daofeng Sun
- School of Materials Science and Engineering , China University of Petroleum (East China) , Qingdao Shandong 266580 , People's Republic of China
| | - Hong-Cai Zhou
- Department of Chemistry, Materials Science and Engineering , Texas A&M University , College Station , Texas 77842-3012 , United States
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11
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Zhang S, Yang Z, Gong K, Xu B, Mei H, Zhang H, Zhang J, Kang Z, Yan Y, Sun D. Temperature controlled diffusion of hydroxide ions in 1D channels of Ni-MOF-74 for its complete conformal hydrolysis to hierarchical Ni(OH) 2 supercapacitor electrodes. NANOSCALE 2019; 11:9598-9607. [PMID: 31063163 DOI: 10.1039/c9nr02555c] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conformal hydrolysis of MOF precursors is a promising strategy to prepare hierarchical metal hydroxide electrode materials on a large scale with low cost and high efficiency. However, a complete transformation is challenging due to the normal "outside-in" conversion process. After studying the hydrolysis of Ni-MOF-74, which has regular 1D channels, we suggest that the transformation to Ni(OH)2 can occur simultaneously outside and within the precursor depending on the treatment temperature. Molecular dynamics simulations reveal that a higher temperature weakens the steric effects of OH- ions and facilitates the diffusion in the regular channels, and therefore, a complete transformation from Ni-MOF-74 to Ni(OH)2 is achieved. It is for the first time demonstrated that the 1D channels of MOFs are utilized for the complete conformal hydrolysis of Ni-MOF-74 to Ni(OH)2 electrode materials. Meanwhile, we also perform pioneering work illustrating that the complete conformal hydrolysis is the key to the improved supercapacitor performances of the MOF-derived Ni(OH)2 electrodes. The prepared Ni(OH)2 electrode under the optimized conditions has a specific capacity of 713.2 C g-1 at a current density of 1 A g-1, which is at least 28% larger than those of the Ni(OH)2 prepared at other temperatures. The detailed analyses based on CV and EIS of the obtained Ni(OH)2 electrodes indicate that the residual MOFs within electrodes due to incomplete hydrolysis significantly influence the diffusion length and diffusion efficiency of OH-, drastically lowering the supercapacitor performances.
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Affiliation(s)
- Shiyu Zhang
- College of Science, China University of Petroleum (East China), Qingdao, Shandong 266580, PR China.
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12
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Co(OH)2@FeCo2O4 as electrode material for high performance faradaic supercapacitor application. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Zhao S, Wu H, Li Y, Li Q, Zhou J, Yu X, Chen H, Tao K, Han L. Core–shell assembly of carbon nanofibers and a 2D conductive metal–organic framework as a flexible free-standing membrane for high-performance supercapacitors. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00390h] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid core–shell material based on carbon nanofibers and a 2D conductive metal–organic framework has been fabricated into a flexible free-standing membrane as an electrode material for supercapacitors.
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Affiliation(s)
- Shihang Zhao
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Huihui Wu
- Pan Tianshou Arts and Design Academy
- Ningbo University
- Ningbo
- China
| | - Yanli Li
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Qin Li
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Jiaojiao Zhou
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Xianbo Yu
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Hongmei Chen
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Kai Tao
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
| | - Lei Han
- School of Materials Science & Chemical Engineering
- Ningbo University
- Ningbo
- China
- Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province
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Zheng D, Li M, Li Y, Qin C, Wang Y, Wang Z. A Ni(OH) 2 nanopetals network for high-performance supercapacitors synthesized by immersing Ni nanofoam in water. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:281-293. [PMID: 30746322 PMCID: PMC6350860 DOI: 10.3762/bjnano.10.27] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/09/2019] [Indexed: 05/09/2023]
Abstract
Developing a facile and environmentally friendly approach to the synthesis of nanostructured Ni(OH)2 electrodes for high-performance supercapacitor applications is a great challenge. In this work, we report an extremely simple route to prepare a Ni(OH)2 nanopetals network by immersing Ni nanofoam in water. A binder-free composite electrode, consisting of Ni(OH)2 nanopetals network, Ni nanofoam interlayer and Ni-based metallic glass matrix (Ni(OH)2/Ni-NF/MG) with sandwich structure and good flexibility, was designed and finally achieved. Microstructure and morphology of the Ni(OH)2 nanopetals were characterized. It is found that the Ni(OH)2 nanopetals interweave with each other and grow vertically on the surface of Ni nanofoam to form an "ion reservoir", which facilitates the ion diffusion in the electrode reaction. Electrochemical measurements show that the Ni(OH)2/Ni-NF/MG electrode, after immersion in water for seven days, reveals a high volumetric capacitance of 966.4 F/cm3 at a current density of 0.5 A/cm3. The electrode immersed for five days exhibits an excellent cycling stability (83.7% of the initial capacity after 3000 cycles at a current density of 1 A/cm3). Furthermore, symmetric supercapacitor (SC) devices were assembled using ribbons immersed for seven days and showed a maximum volumetric energy density of ca. 32.7 mWh/cm3 at a power density of 0.8 W/cm3, and of 13.7 mWh/cm3 when the power density was increased to 2 W/cm3. The fully charged SC devices could light up a red LED. The work provides a new idea for the synthesis of nanostructured Ni(OH)2 by a simple approach and ultra-low cost, which largely extends the prospect of commercial application in flexible or wearable devices.
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Affiliation(s)
- Donghui Zheng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Man Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Yongyan Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Chunling Qin
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Yichao Wang
- School of Life and Environmental Sciences, Deakin University, Waurn Ponds, VIC 3216, Australia
| | - Zhifeng Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
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